Kingston KTM-609/16II
@70D4.ADF - KINGSTON KTM-609/16 Memory Expansion Adapter 
C70D4.ADF - Init file for @70D4.ADF 
KEMM.SYS 286 Expanded Memory Driver (not for 386SX and up!)
609files.exe Install Disk for KTM-609/16
ktm609d1.pdf KTM-609/16 Memory Expansion for Model 50, 50z, 55sx, 60, and 65sx

NOTE: Image of KTM-609/16II from William R. Walsh HERE


P1-4 72 pin SIMM sockets
U14, 22, 31, 34 Signetics PLS153AN
U11 - Dallas DS1000N Delay
U12 - Signetics N82HS195BN
U20 - 1047U18A
U21 - Signetics PLS173F
U25 - Chips P82C631
U26 - 1070U26B
U27 - Signetics PLS153AN
U32 - 1070U32A
U33 - 1070U33B
U37 - 1070U37B
U38 - Signetics PLS153AN

   The KTM 609 came out in variations. The original KTM 609  (without "/16" and "Plus II") came with no RAM, took 512K, 1M and 2M modules only and it was pretty bad . Same card-ID and same layout as later cards. Hard to differ, which is which. I *think* they only changed the ADFs a bit. Then they brought the revised KTM 609 /II which worked fine. The 609/Plus came with 2 or 4MB Simm already - cannot remember exactly. 

Three models of the KTM609/16: 
Type I has four SIMM sockets with no memory soldered directly to the board; 
Type II has 4MB soldered and three sockets for expansion; 
Type III has 8MB soldered with two sockets available.

The KTM-609/16 memory board uses IBM standard 72-pin SIMMs
The SIMM modules are installed in descending order starting with the higher capacity SIMMs first. The first socket is P1, then P2, and so on.

Kingston P/N        IBM P/N  Size
KTM-1000/M70  6450603  1MB SIMM
KTM-2000/M70  6450604  2MB SIMM
KTM-4000/M70  34F2933  4MB SIMM

And - of course - the KTM 609/16 takes 4MB SIMMs.

KTM-609/16II on 32-bit Systems
>This KTM-609/16 gets VERY hot in my mod. 80. Sometimes (after AUTOCONFIG or SAVE CHANGES) the machine does not recognize the cards memory and I have to do a second SAVE CHANGES to find the card. Is it possible that this card CANNOT be used in a mod. 80?

   Hmm. Let me say it this way: it *should* not be used in a Mod. 80 ... because of the memory performance degrations - but if the card is technically in good order it will work in there of course. At least on original 16 and 20MHz Mod. 80 (-0xx to -311) ... it may fail on the 25MHz (-Axx) models - but that has the basic reason in the bandwidth of the processor with cache that uses more and faster memory cycles. The 16 and 20MHz systems have no CPU-cache (if they have the 386DX and are not upgraded with e.g. the Kingston 486Now! or the Cyrix / TI 486DLC or Blue Lightning upgrades.

   I ran a KTM 609 in my Mod. 80-071 for some time - while I had nothing else to boost up the original 2MB to at least 8MB (back in the good old DOS-with-Win3.1 times). But I replaced the card as soon as possible with an IBM 32-bit 2-8MB card. I *think* I have some of them laying around here ... I'll dig for one and let you know if I succeeded. I think the KTM609 and the 2-8 use the same memory modules. IIRC I swapped the modules from the Kingston over to the IBM with no problems ... but that is long ago and my cheap memory has bit-failures from time to time .... ;-) 

Can I use Two KTM-609 on 8580?
>Is it possible on PS/2 Mod. 80 (386-20) to install TWO Kingston KTM-609/16 RAM Expansion Cards to pass the 16MB llimit?AFAIK the cards were made originally for mod. 50, but the first one
 works without problems in mod. 80.

Nope. They are 286 / 16-bit cards. And 2^24 adress lines are exactly 16.0MB. You *could* try setting up a LIM-EMS expanded memory model on these cards - but it will work only with particular software that uses the LIM-EMS standard. Linux, OS/2 and Windows after 3.x will most likely refuse to work with this adressing model. They are designed to operate with a linear (32-bit adressing) model. Particularly the "true 32-bit" operating systems will choke on that.

I know that a single card can be used in a 386 machine with some memory performance degrations - but that's no way to really pass the 24-bit DMA limit, which -in the end- causes the 16MB RAM limit on the Mod. 80. You need either the Acculogic Simmply RAM 32-bit card or the 32-bit Kingston KTM 64 at least. These cards have own logic to care for the memory and do not rely on the systemboard NMI / Parity error detection logic, which uses the DMA to trakc / detect errors within the memory. 

Hi Ed !

>>For the KTM 609 you *need* a 55SX refdisk *and* the KTM-609 option disk, which comes with all the ADFs (2 !!) and a modified SC.EXE and some DGS file(s). WRW - Dim memories of mine suggest that the updated SC.EXE provided with the XGA-2 option diskette will allow the Kingston card to work fine if you have the ADF and initialization program files already.

>What happens if you have two different adaptors and they both come with a modified sc.exe?  Are all the versions of this file just chronologically ordered new releases from IBM or is there some more sinister DLL hell going on?

   Basically the rule of updating the reference partition is, that the files with a newer release date or version number (which *is* normally a later date) are copied over the existing ones.

   I don't know why some board manufacturers choose to replace the SC.EXE - but Kingston is / was one of those. As well as Tecmar and Quadram, where boards failed to work - at least with older reference disks. When I installed massive amounts of KTM-609 board back in 1991 / 92 the 55/65 reference version was 1.03 - I think the 55/65 ended at 1.05. If you have a 1.00 - 1.03 version of the ref-disk and you only copy the ADFs to it ... the Kingston will not work.

The 1.05 - don't know. They changed a lot on it AFAIK. The earlier versions are based on DOS 3.3 - I think the 1.04 and 1.05 were at least based on DOS 4. 

16MB on 9556
>does anyone know of a card to increase the memory on a 9556, I know its a 386 based machine with a 486 upgrade, Will the 386 memory boards (from kingston or ibm) work in these machines

Yes. Highly recommended is the Kingston KTM-609 II - since it supports XMS memory - what the IBM 1-2 and the 0-8 XMA don't. 

Using KTM-609/16 on 32-bit System, Part 2
Kurt (and Peter),
This card *will* work fine in a 386 (at least a 386sx, which has 16-bit slots). Here are the things I know about this card that may be relevant:

1) Do not use KEMM.SYS on a 386 - use the usual EMM386.SYS.
2) Make sure you have not allocated the memory to expanded memory in  setup.
3) You probably need to run the Kingston install disk, or at least copy their SC.EXE to the reference disk (or maybe some other file - I don't remember, but I think the ADF alone wasn't sufficient).
4) Don't run automatic configuration.  Do go into Set Configuration and use F10 to Save it.
5) I'm not sure, but it may just ignore SIMMs whose presence detect codes (size and speed) it doesn't recognize.  It may also require them to be installed in the SIMMs slots starting with slot 1.

I had the instruction manual for this card at one time but unfortunately didn't save a copy.
Aron Eisenpress, City U of NY / Computing & Information Services

memory upgr prob 55sx
Application Notes Kingston KTM 609/16

Automatic Installation
   1.Before inserting the card into the MCA slot, boot into DOS and run INSTALL.EXE from the Option Diskette. The diskette can be downloaded at 609FILES.EXE. DEAD From the installation program menu, choose "Install Configuration Files onto Reference Disk" to update the reference diskette. Then choose "Exit and Back to DOS".
   2.Power off the computer and insert the card into the MCA slot.
   3.Boot the computer with the Reference Diskette in the drive. Do NOT run Automatic Configuration. Choose "Set configuration," then "Change configuration." On the line that reads "KINGSTON KTM-609/16 Memory Expansion Adapter", make sure that Expanded Memory is set to "Disabled." Save configuration with F10, then exit and reboot.
   4.The added memory should now be counted. Do NOT use the KCEMM.SYS memory manager from the Option Diskette. Use the standard EMM386 with option NOEMS. 

Manual Installation  Ed. I have modified the following!
   1.Before inserting the card into the MCA slot,  copy @70D4.ADF,  C70D4.ADF and SC.EXE into the root directory of the Kingston install disk (or another floppy).Boot with the refdisk, choose  Copy an Options Diskette from the main menu of Systems Program. The system will ask for the new files, insert the floppy with the new files, the system should notice the new or updated files and copy them to memory, then it will ask for the refdisk. It will them copy the new files to the refdisk and it's done.
   2.Follow steps 2 through 4 as in "Automatic Installation." 

In order to use the expanded memory feature, you must first install the expanded memory device driver, KEMM.SYS in CONFIG.SYS


XXXX  tells KEMM.SYS to look for a valid page frame. The page frame is the first address of the EMS mapping window. Ex. :FRAME=C000

YYYYY  what part of extended memory will be allocated for EMS. Determine the base EMS parameter with YYYYY=Total Memory (KB) + 384 - Amount of EMS Required For example, if your computer has 8MB (8,192KB) of memory, 640KB base memory and 7,552KB is used as EMS. For 2MB (2048KB) of EMS, calcule:YYYYY = 8192 + 384 - 2048 = 6428
In this case, the base parameter would be: BASE=6428

ZZZ  specifies # of handles and names available. Handles are used to identify a block of memory requested by an application. Each application that uses EMS requires at least one handle. Some programs require more than one handle and these programs will prompt you if they run out of handles. The acceptable handle parameter range is from 16 to 255. 
   Note that each handle/name defined consumes EMS, making less EMS available for your application. Because of this, you should only define enough handle/name parameters to support your application. In most cases, the default value of 32 should be adequate for most applications. If you require more than 32 handles, you can specify a greater number of handles. For example: HANDLES=64

Screen Message from KEMM.SYS
As the computer boots, the following messages will appear:
KEMM: 80386 Expanded Memory Manager, V 4.0
Copyright 1990, Kingston Technology Corp.
Page Frame Address at Segment C000H
Total EMS Memory is 9472Kbyte (592 pages)
KEMM: EMS driver is successfully loaded!

Regardless of how much extended memory your computer has, only a maximum 15MB can be allocated as expanded memory. In fact, to preserve your extended memory, you should only allocate the amount of expanded memory necessary to support your particular application.


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